Can-filling machine



2 Sheets-Sheet 1.

Patented Mar. 24, 1885.

(NoModel.)

W. H. H. STEVENSON.

. 4CAN FILLING MAGHINE. No. 314.352.

` WVU/wsse@ (No Model.) y 2 sheets-sheet 2. W. I-I. H. STEVENSON.

GAN FILLING MACHINE.

No. 314,352. Patented Mar. Z4, 1885.

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UNITED STAT-ns BAU-:Nr @ri-Ica WILLIAM H.. H. srEvENsoN, or BALTIMORE,MARYLAND.

CAN-FILLING MACHINE.

'SPECIF'KCATION forming part of Letters Patent No. S14-,352, dated March24, 1885.

To all whom it may concern.-

Be it known that l, WILLIAM H. H. STE- VENSON, a resident of Baltimorecity, Maryland, have invented certain 'new and useful Improvements inCan-Filling Machines, of which the following is a specification,reference being had to the accompanying drawings, forming part hereof,in which- Figure l is an end elevation of myimproved machine, showingmechanism for exhausting the air in connection therewith. Fig.2 is acentral longitudinal vertical section of the machine. Fig. 3 is a topplan view, the ropes and pulleys being omitted; and Fig. 4 isasectionaldetail.

Like letters of reference mark the same parts in all the figures.

My invention relates to machines forfilling cans with liquids; and itconsists in the construction, arrangement, and combination of parts,which will be first fully described, and afterward pointed outspecifically in the claims.

Referring to the drawings byletter, A is the tank; A', the cylinder; A2,the piston; A3, the pipe through which air enters the tank, and A4 thepipe through which the air is exhausted.

The pipe A3 communicates with the llingmachine by means of a flexiblesection, A5, and is provided with a small branch pipe, a, leadingvertically downward, and communicating with a reservoir, c', having Aavalve, c2, in its bottom.

B is the pipe (attached to the machine) with which the exible section A5is connected, and it is furnished with a valve, B', havingastein, B2,and which is normally closed.

To any suitable support overhead are at-V tached two rods, Gnhaving eacha pulley, c, in its forked end, over which passes a rope, C', whoseouter end carries a weight, C2, and whose inner end is attached in aneye, c', on the end of a rod, C, which passes through a bracket, Ct,attached tothe upper portion of the end walls of a tank, D, and is atits lower end passed through a plate, E, being securedthereto by nuts e.Upon thisplate E, on suitable supports, rests a pan, F, in which thecans, 5o f, to be filled are placed. f

The machine as here illustrated has aca- Application tiled April 10,1884. (No model.)

pacity of fifteen cans at once, and this pan is consequently ofsufficient size to receive them, being placed in three .rows of fiveeach. The tank D has secured to the end walls another pair of brackets,D', through which pass rods D2, which are secured at their upper ends toa plate, G, by nuts d, and at their lower ends to a bar, D, by means ofnuts d. This bar D: passes under the tank D, and has secured to it atreadle, D4, which treadle is pivoted at di, and in bearing attached tothe bottom of the tank D.

Secured to one side of the tank D is an upright projection, D5, and tothe other side an uprightLDG, having its upper end, D7, bent at rightangles thereto. The plate G in its central portion is formed into atank, G', which communicates through the pipe B with exhaust-tank A. Thepipe B may be divided intok a number of branches, as may be desired,each branch communicating with the tank G'. The bottom of the tank Gcoutains as many perforations g as there are cans to be filled at oneoperation. Each of these perforatious is surrounded (see Fig. 4)

by a projecting nipple, h, cast or otherwise formed onto the bottom ot'the tank, the nipples having an interior diameter slightly greater thanthe diameter of the opening g. A tapered nozzle, h', is provided with athreaded end, h2, which screws into the perforation g, and between ashoulder ou it and the bottom of the tank is a packing, lr.

Secured within the nipples h, and surrounding the tapered nozzle h', isa glass tube, Around'this glass tube is fitted a cup-nut, h", which isthreaded onto the outside of the nipple h, and is provided with apacking, h5. When this threaded cup-nut h"L is tightened up, the packingh5 is expanded laterally and tightly hugs the glass tube. The glasstubes near their lower endsl pass through the plate K, havingdownward-projecting nipples K', and secured to plate G by bolts k. Thelower ends of tubes I pass into rubber balls L, and have secured thereonproper sieves or perforated plates, z. \Vithin the tubes are taperedperforated pipes J, having their small ends upward. Also within thetubes are fioating ball-valves I'. Secured to the pipe B below the valveB' is a bracket, b, which has pivoted IOO in its outer end anelbow-lever, one arm of which is marked b and the other b2.

In a nipple, g', projecting from the top of the tank G' is arranged avalve, g2, which is held normally closed by means of a spring. The cam f(see Fig. 4) is provided with two openings, f'f".

The operation of my machine may be described as follows, viz: The canshaving been placed in position on the pan F, having been previouslypartially filled with solid material, and the tank D having been filledwith the liquid, the plate G and its contents are lowered, bringing therubber balls into contact with the cans. The further movement downwardof the plate G and its attachments carries the plate E and the canssupported thereon into the tank D until the cans are fully irnm ersed inthe liquid. The pump is now started, exhausting the air in theexhaust-tank A and all the parts communicating with it, includ-A ing thecans. As the air passes out of the can through the opening f' the liquidrushes in to take its place through the opening f2. The continualoperation of t-he pump carries the liquid into the tube I, and when itis sufciently raised therein the floating ball-valves will be carried upuntil they lodge against the lower end of the tapered nozzles h',closing said nozzles. This fact may be observed through the glass tubeI,and when all the balls have been raised the further action of the pumpwill create a vacuum in the tank G', which will open the valve glagainst the action of the spring, allowing the air to pass in, and thusrelieve pressure on the valves I. Vhen the plate G and its attachmentswere first lowered, t-he valve B' was opened by the arm VZ22 of theelbow-lever striking the pro- 40 jections D5, and causing the arm b ofsaid elbow-lever to press the stem Bl of the valve inward. After thecans have been filled, as before stated., the plate G and itsattachments are raised until the stem of the valve g2 strikes thehorizontal arm D7 of the projection D, pressing the valve farther openand holding it so. This will destroy the partial vacuum existing in thetank G' (the valvev B' having resumed its normally-closed position) andcause the liquid in the pipes I to escape at the bottom, whereby thevalves I will again take their lower position on top of the perforatedpipes J, as shown in Figs. 2 and 4.. The cans may now be lifted out oft-he liquid by raising their supporting-plate E, and removed therefrom.Anyliquid that may by accident have been drawn into the pipes B and Aismay be let out by opening the valve al.,

Having thus described my invention, what I claim isl. In a can-llingmachine, the combination of a liquid-tank, a movable can-holder, an ex--hausting apparatus, pipes communicating between the cans on the holderand the exhausting apparatus, and provided with valves, and mechanismfor immersing the cans and their holder in the liquid in the tank, asand for the purpose set forth.

2. The combination of an air-exhausting apparatus, a pipe, A3, theflexible pipe A5, the

pipe B, and the movablevalve-carrying plate A thereby, the liquid-tankD, the projection D,

attached thereto, and the horizontal bar Dl, as and for the purpose setforth.

5. The combination of the tank G', the glass tube secured thereto, thenozzle h', tapered perforated pipe J, and the ball-valve I', as and forthe purpose set forth.

6. rllhe combination of the tank G', having perforated bottom, thenipples It, projecting downward therefrom, the nozzle h', threaded tothe perforated glass tube I, the cup-nut h4, and the packing h3 h5, asand for the purpose set forth.

7. The combination of the tank G', having perforated bottom, the glasstubes I, secured to said bottom and communicating with saidperforations, the plate K, having nipples K', and the rubber ball-valve,as and for the purpose set forth.

8. The combination of the plate E, adapted to support the cans to beraised and lowered, the tank G', pipe B, attached thereto, andcommunicating with the exhaust mechanism, and tubes I, connecting withthe cans carried by the plate E, as and for the purpose set forth.

9. The combination of the liquid-tank-carrying bracket C, the plate E,for supporting the cans, the rods C, and t-he counterpoiseweights C, asand for the purpose set forth.

l0. The combination of the liquid-tank, the tank G', connecting with theexhaust mechanism and with the cans, rods D2, cross-bar D3,

IOO

and treadle D, as and for the purpose set l forth.A

1l. The combination of the tank G', having connection with exhaustingmechanism and with the cans, and adapted to be raised and lowered, thecan-supporting plate, also adapted to be raised and lowered, and theliquid-tank, as and for the purpose set forth.

l2. The combination of the liquid-tank-carrying brackets C4 and D', thecan-supporting plate E, rods C, counterpoise-weight C2, the tank G', androds D2, as and for the purpose set forth.

13. The combination of the can-supporting plate, counterpoised as setforth, the plate G, adapted to be raised and lowered, and aseries ofpipes, I, carried by said plate G, and having communication with theexhaust apparatus, as and for the purpose set forth.

14. In combination, an exhausting apparebus, pipes communicating betweenit and nly hand in the presence of two subscribing the cans7 acan-holder, a liquid-tank adapted Witnesses.

to receive the cans, and automatic valve-operating devices brought intoaction by the 5 raising and lowering of the can-hoider, as seb forth.

Y In testimony whereof I have hereunto set VILLIAM H. H. STEVENSON.

Witnesses:

J. MASON GoszLER, S. BRAsHEARs.

